[14p-1E-1~17] 12.1 Fabrications and Structure Controls

[14p-1E-12] Studies on Alkylammonium-Au(dmit)₂ LB films by Infrared Spectroscopy

〇Yasuhiro Miura¹, Haruki Matsui¹, Kyoko Inoue¹, Jun-ichi Hoshino¹, Keiichi Ikegami² (1.Toin Univ. of Yokohama, 2.AIST)

Keywords:Langmuir-Blodgett technique,metallic properties,superconductivity

The LB film based on ditetradecyldimethylammonium-Au(dmit)₂ salt exhibits a high room-temperature conductivity (40 S/cm), a metallic temperature dependence, and a magnetic anomaly, which suggests a superconducting transition at 3.9 K after electro-oxidation. We report on that the charge transfer band of Au(dmit)₂ anions is delocalized during the electro-oxidation of the film based on the infrared spectra.